CN107134617A - A kind of design method of multilayer acoustical panel strip line double frequency filter - Google Patents
A kind of design method of multilayer acoustical panel strip line double frequency filter Download PDFInfo
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- CN107134617A CN107134617A CN201710529725.3A CN201710529725A CN107134617A CN 107134617 A CN107134617 A CN 107134617A CN 201710529725 A CN201710529725 A CN 201710529725A CN 107134617 A CN107134617 A CN 107134617A
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- China
- Prior art keywords
- double frequency
- frequency filter
- strip line
- filter
- acoustical panel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
Abstract
The present invention provides a kind of design method of multilayer acoustical panel strip line double frequency filter, comprises the following steps, the sum of series type of two wave filters of strip line double frequency filter is determined according to needed for project；The coupling matrix of two wave filters is obtained according to the sum of series type of two wave filters；Electromagnetic-field simulation environment is built according to multilayer acoustical panel layer structure and the respective filter model of two wave filters is set up according to the coupling matrix of acquisition；Electromagnetic-field simulation is carried out to two filter models；Double frequency filter attachment structure according to needed for the data structure project obtained after each filter model electromagnetic-field simulation；Strip line double frequency filter needed for double frequency filter attachment structure and two wave filter composition projects, and strip line double frequency filter is subjected to overall electromagnetic-field simulation checking.The design method of the multilayer acoustical panel strip line double frequency filter of the present invention, realizes Microwave Active passive circuit integrated design, so as to effectively reduce the volume of circuit module.
Description
Technical field
The invention belongs to microwave passive circuit design field, and in particular to a kind of multilayer acoustical panel strip line double frequency filter
The design method of ripple device.
Background technology
The demand increasingly minimized with communication equipment, in the case where the index of various devices is guaranteed, to various
The EMC Requirements more and more higher for wanting summation module of device volume.Particularly following airborne radar is required in high frequency even
Millimeter wave frequency band realizes the transmitting of microwave multifrequency and the integrated design of receiving circuit, and multilayer acoustical panel can be used more and more
Technology, and be that the miniaturization for realizing passive circuit is integrated the problem of solution circuit miniaturization is most crucial under the premise of the technology and set
Meter, and double frequency filter technology is the passive circuit realized the transmitting of microwave multifrequency and receive most critical, its index and miniaturization journey
Degree all determines the performance and size of whole circuit product.
The content of the invention
It is an object of the invention to provide a kind of design method of multilayer acoustical panel strip line double frequency filter, microwave is realized
Active passive circuit integrating is designed, so as to effectively reduce the volume of circuit module.
The purpose of the present invention is achieved through the following technical solutions：A kind of design of multilayer acoustical panel strip line double frequency filter
Method, comprises the following steps,
Step one：The sum of series type of two wave filters of strip line double frequency filter is determined according to needed for project；
Step 2：The coupling matrix of two wave filters is obtained according to the sum of series type of two wave filters；
Step 3：Electromagnetic-field simulation environment is built and in this context according to step 2 according to multilayer acoustical panel layer structure
The coupling matrix of middle acquisition sets up the respective filter model of two wave filters；
Step 4：Electromagnetic-field simulation is carried out to two filter models；
Step 5：According to needed for the data structure project obtained after each filter model electromagnetic-field simulation in step 4
Double frequency filter attachment structure；
Step 6：The band needed for double frequency filter attachment structure and two wave filter composition projects needed for the project
Shape line double frequency filter, and the strip line double frequency filter is subjected to overall electromagnetic-field simulation checking.
Preferably, the multilayer acoustical panel layer structure include stack gradually from top to bottom the first metal layer, first
Medium flaggy, second medium flaggy, the 3rd metal level, wherein, it is Nian Jie between the first medium flaggy and the second medium flaggy
There is first medium plate bonding material layer, and be disposed with the second medium flaggy close to first medium plate bonding material layer side
Second metal layer.
Preferably, the second metal layer is to be etched with the company of rising between two wave filters and two wave filters
Connect the figure of the double frequency filter attachment structure of effect.
Preferably, the double frequency filter attachment structure is at two.
Preferably, the first metal layer thickness is 0.02mm, and first medium laminate thickness degree is 0.508mm, first
Scutum bonding material layer thickness is 0.1mm, and second metal layer thickness is about 0.02mm, and second medium flaggy thickness is 0.508mm,
3rd metal layer thickness is about 0.02mm.
A kind of beneficial effect of the design method of multilayer acoustical panel strip line double frequency filter provided by the present invention is,
Without the help of structural member, by means of multilayer dielectricity plate technique, realize that microwave double frequency filter is designed in multilayer dielectricity intralamellar part；Easily
In the production of extensive batch；It is simple in construction, small volume, lightweight；It can be widely applied in microwave passive circuit design, for example, lead to
Letter, radar, electronic warfare etc..
Brief description of the drawings
Fig. 1 for multilayer acoustical panel strip line double frequency filter of the present invention design method in strip line double frequency filter it is many
Layer dielectric-slab layer structure schematic diagram；
Fig. 2 is the first metal layer schematic diagram in the multilayer acoustical panel layer structure shown in Fig. 1；
Fig. 3 is the etched figure schematic diagram in the second metal layer in the multilayer acoustical panel layer structure shown in Fig. 1；
Fig. 4 is strip line double frequency filter passage in the design method of multilayer acoustical panel strip line double frequency filter of the present invention
The S parameter analogous diagram of wave filter；
Fig. 5 is strip line double frequency filter passage in the design method of multilayer acoustical panel strip line double frequency filter of the present invention
Wave filter coupling matrix.
Reference：
1- the first metal layers, 2- first mediums flaggy, the first scutums of 3- bonding material layer, 4- second metal layers, 5- second
Medium flaggy, the metal levels of 6- the 3rd, 7- wave filter A, 8- wave filter B, 9- double frequency filter attachment structure A, 10- double frequency filters
Attachment structure B.
Embodiment
To make the purpose, technical scheme and advantage of the invention implemented clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label represent same or similar element or the element with same or like function.Described embodiment is the present invention
A part of embodiment, rather than whole embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to uses
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The design method to the multilayer acoustical panel strip line double frequency filter of the present invention is done further in detail below in conjunction with the accompanying drawings
Describe in detail bright.
A kind of design method of multilayer acoustical panel strip line double frequency filter, comprises the following steps：
Step one：According to the working frequency of project demands selection double frequency filter, bandwidth, clearly with outer filtering degree of suppression,
The sum of series type of two wave filters of determination double frequency filter is required according to These parameters.
Step 2：Determine the sum of series type of wave filter according to upper step, and combine the requirement of port Impedance to enter using software
Row network synthesis obtains two corresponding coupling matrixs of wave filter.(coupling matrix can determine to filter standard)
Step 3：Electromagnetic-field simulation environment is built and in this context according to step 2 according to multilayer acoustical panel layer structure
The coupling matrix of middle acquisition sets up the respective filter model of two wave filters.
Step 4：Carry out the electromagnetic-field simulation design of two filter models according to coupling matrix, and by the filter emulated
The parameter export of ripple device turns into S2P forms, can be emulated herein using softwares such as HFSS, ADS, but carried out preferably with ADS
Emulation, because ADS has powerful principle map analysis designed capacity, can facilitate the design of double frequency filter attachment structure.
Step 5：According to needed for the data structure project obtained after each filter model electromagnetic-field simulation in step 4
Double frequency filter attachment structure.
Namely the S2P of emulated two wave filters is opened in ADS principle design softwares, to double frequency filter two
The attachment structure at end carries out branch's lines matching, and the schematic diagram optimization and debugging acid using software are entered to branch line structural parameters
Row simulation optimization is designed, until obtaining best return loss and intermediate zone inhibition, its time reflection coefficient of port loss refers to mesh
Scale value is less than the double frequency filter attachment structure needed for -15dB, i.e. project.
Step 6：Obtained double frequency filter attachment structure and two wave filters are together brought into electromagnetic field simulation software
Simulating, verifying is modeled, some simple fine settings are carried out as needed, you can obtain final strip line double frequency filter domain,
Domain is finally imported into Cartography designing, and completes to hand over the steps, complete design such as system, welding, test.
Illustrated with reference to the drawings and specific embodiments.
As shown in figure 1, the first metal layer 1, first that multilayer acoustical panel layer structure includes stacking gradually from top to bottom is situated between
Scutum layer 2, second medium flaggy 5, the 3rd metal level 6, wherein, glued between the first medium flaggy 2 and the second medium flaggy 5
First medium plate bonding material layer 3 is connected to, and in the second medium flaggy 5 close to the side of first medium plate bonding material layer 3
It is disposed with second metal layer 4.
The first metal layer 1 covers copper metal stratum for top, and thickness is about 0.02mm, as shown in Figure 2；
First medium laminate layer 2 is ARLON-CLTE-XT dielectric-slabs, and thickness is 0.508mm；
First scutum bonding material layer 3 is TACONIC-FR27 dielectric-slabs, and thickness is 0.1mm；
Second metal layer 4 is Etching layer, and thickness is about 0.02mm；
Second medium flaggy 5 is ARLON-CLTE-XT dielectric-slabs, and thickness is 0.508mm；
3rd metal level 6 covers copper metal stratum for bottom, and thickness is about 0.02mm；
Wherein, in addition to second metal layer 4, remaining all layer is all unbroken layer.
Second metal layer 4 is Etching layer, is mainly made up of three parts, is respectively：Wave filter A7, wave filter B8,
And the double frequency filter attachment structure A9 and double frequency filter attachment structure B10 of its connection function between two wave filters,
As shown in Figure 3.
Global design flow is：First, it is according to working frequency that wave filter A7 and wave filter B8 is wide according to eight rank four-zero points
Adopted Chebyshev filter structure carries out ADS electromagnetic-field simulation designs, obtains its circuit layout, its coupling matrix design parameter is
Shown in Fig. 5, the circuit of electromagnetic field simulation software is subjected to packing generating device component models；Secondly, it is imitative in ADS principles
Double frequency filter attachment structure is modeled in true software, on the whole using branch's cable architecture, specific method is filtered with other side
Wave filter connecting line is designed on the basis of 1/4 length of ripple device operating frequency wavelength, on this basis setting according to physical circuit
Meter is needed connecting line being further segmented, and every section of line width is adjusted, while being inserted in the middle of these line segments
Branch's cable architecture simultaneously improves the standing wave and isolation of each port by changing the width and length of branch line jointly, design ginseng
Examine value standing wave and should be less than -15dB, as shown in Figure 4.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should using the scope of the claims as
It is accurate.
Claims (5)
1. a kind of design method of multilayer acoustical panel strip line double frequency filter, it is characterised in that comprise the following steps,
Step one：The sum of series type of two wave filters of strip line double frequency filter is determined according to needed for project；
Step 2：The coupling matrix of two wave filters is obtained according to the sum of series type of two wave filters；
Step 3：Electromagnetic-field simulation environment is built according to multilayer acoustical panel layer structure and obtained in this context according in step 2
The coupling matrix obtained sets up the respective filter model of two wave filters；
Step 4：Electromagnetic-field simulation is carried out to two filter models；
Step 5：Double frequency according to needed for the data structure project obtained after each filter model electromagnetic-field simulation in step 4
Wave filter attachment structure；
Step 6：The strip line needed for double frequency filter attachment structure and two wave filter composition projects needed for the project
Double frequency filter, and the strip line double frequency filter is subjected to overall electromagnetic-field simulation checking.
2. the design method of multilayer acoustical panel strip line double frequency filter according to claim 1, it is characterised in that described
Multilayer acoustical panel layer structure includes the first metal layer (1), first medium flaggy (2), second Jie stacked gradually from top to bottom
Scutum layer (5), the 3rd metal level (6), wherein, the is bonded between the first medium flaggy (2) and the second medium flaggy (5)
One dielectric-slab bonding material layer (3), and in the second medium flaggy (5) close to first medium plate bonding material layer (3) side
It is disposed with second metal layer (4).
3. the design method of multilayer acoustical panel strip line double frequency filter according to claim 2, it is characterised in that described
Second metal layer (4) is to be etched with rising the double frequency filter of connection function between two wave filters and two wave filters
The figure of ripple device attachment structure.
4. the design method of multilayer acoustical panel strip line double frequency filter according to claim 3, it is characterised in that described
Double frequency filter attachment structure is at two.
5. the design method of multilayer acoustical panel strip line double frequency filter according to claim 2, it is characterised in that described
The first metal layer (1) thickness is 0.02mm, and first medium laminate layer (5) thickness is 0.508mm, the first scutum bonding material layer
(3) thickness is 0.1mm, and second metal layer (4) thickness is about 0.02mm, and second medium flaggy (5) thickness is 0.508mm, the 3rd
Metal level (6) thickness is about 0.02mm.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1497768A (en) * | 2002-10-04 | 2004-05-19 | 松下电器产业株式会社 | Duplexer and lamination type high frequency device using said duplexer and communication equipment |
| CN103151578A (en) * | 2013-01-17 | 2013-06-12 | 王少夫 | Method for optimization design of cross-coupling band-pass filter and duplexer |
| CN105762446A (en) * | 2016-04-19 | 2016-07-13 | 戴永胜 | Duplexer with K-band opening annular strip line structure |
| CN106785299A (en) * | 2016-12-21 | 2017-05-31 | 中国航空工业集团公司雷华电子技术研究所 | A kind of method for designing of multilayer acoustical panel strip line duplexer |
-
2017
- 2017-07-02 CN CN201710529725.3A patent/CN107134617A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1497768A (en) * | 2002-10-04 | 2004-05-19 | 松下电器产业株式会社 | Duplexer and lamination type high frequency device using said duplexer and communication equipment |
| CN103151578A (en) * | 2013-01-17 | 2013-06-12 | 王少夫 | Method for optimization design of cross-coupling band-pass filter and duplexer |
| CN105762446A (en) * | 2016-04-19 | 2016-07-13 | 戴永胜 | Duplexer with K-band opening annular strip line structure |
| CN106785299A (en) * | 2016-12-21 | 2017-05-31 | 中国航空工业集团公司雷华电子技术研究所 | A kind of method for designing of multilayer acoustical panel strip line duplexer |
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Application publication date: 20170905 |